I used their 50% off $500 couple of times and struggled to get into higher tier since than due to lack of stock. No regrets whatsoever, I was patient enough to get great deals on eBay any other time of the year.

Kept them all so far. I still have some space in cabinets for smaller models but starting to think about getting a bigger house some 500 miles east which will partially solve my space problem for 1/32 models.

Not sure what is "standard Russian green", probably famous MiG-21 to -31 cockpit Turquoise, but Su-30 cockpit is blue.
http://mrpaint.sk/index.php?route=product/product&amp;product_id=274 - for early su-27 family and
http://mrpaint.sk/index.php?route=product/product&amp;product_id=372 - for late Su-'s

Hmm, never heard of any counterfeit Iwatas. Not that I looked for one though. I did see lots of cheap chinese airbrushes and even used one briefly, but they all were not similar to any big brands. Maybe I'm just ignorant.
It seems that Iwata begun making airbrushes for Gunze, but it is completely different story.